A tweet by David Baddiel has been labelled the “greatest own ever” after he compared Boris Johnson’s language to fictional schoolboy Billy Bunter.

The comedian hit out at the Foreign Secretary after his description of Labour leader Jeremy Corbyn as a “mutton-headed old mugwump”.

Baddiel, 52, posted on Twitter: “Nothing makes me want to vote for Corbyn more than Boris Johnson using – and thinking it’s adorable – his stupid Billy Bunter language.”

One user challenged him over the comparison to Charles Hamilton’s obnoxious, anti-hero character, replying “you haven’t read much Billy Bunter, have you @Baddiel?”

This prompted what one fan dubbed the “greatest Twitter own ever” as the television presenter responded with a photo of a newspaper clipping showing himself as a young boy surrounded by annuals in which the character appears.

Baddiel later clarified that he does not want to vote for Mr Corbyn but “Boris saying c**** stuff like that just *makes* me want to”.